#309BB6#309BB6

#309BB6 is a light, moderate cyan. Relative luminance 0.274; OKLCH L 64.1% C 0.102 H 218.6°. Best body text is #000000 at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#309BB6
RGB	rgb(48, 155, 182)
HSL	hsl(192, 58%, 45%)
HSV	hsv(192, 74%, 71%)
CMYK	cmyk(73.6%, 14.8%, 0%, 28.6%)
CIE-LAB	lab(59.38, -20.85, -22.68)
CIE-LCH	lch(59.38, 30.81, 227.41°)
OKLab	oklab(64.15% -0.0795 -0.0633)
OKLCH	oklch(64.15% 0.102 218.6)
XYZ	xyz(21.3802, 27.4459, 48.4177)
Luminance	0.2745 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309BB6 #B64B30

analogous

#30B68E #309BB6 #3058B6

triadic

#309BB6 #B6309B #9BB630

tetradic

#309BB6 #8E30B6 #B64B30 #58B630

square

#309BB6 #8E30B6 #B64B30 #58B630

split-complementary

#309BB6 #B63058 #B68E30

monochromatic

#164955 #237286 #309BB6 #52B8D1 #82CCDE

Accessibility & contrast

On white

3.24

#309BB6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.49

#309BB6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309BB6

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309BB6	#FFFFFF	#000000	##000000
##309BB6	1.00	3.24	6.49	6.49
#FFFFFF	3.24	1.00	21.00	21.00
#000000	6.49	21.00	1.00	1.00
##000000	6.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A97B7

Deuteranopia (green-blind)

#7889B6

Tritanopia (blue-blind)

#00A4A4

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #309bb6;
/* rgb */ color: rgb(48, 155, 182);
/* oklch */ color: oklch(64.1% 0.102 218.6);

Tailwind

colors: {
  custom: {
    50: '#7cb8cc',
    500: '#309bb6',
    950: '#000000',
  },
}

SCSS

$custom: #309bb6;
$custom-light: #7cb8cc;
$custom-dark: #000000;

JSON

{
  "hex": "#309bb6",
  "rgb": {
    "r": 48,
    "g": 155,
    "b": 182
  },
  "hsl": {
    "h": 192.09,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.64148,
    "c": 0.10162,
    "h": 218.6
  },
  "luminance": 0.27448
}

Semantic roles & 50–950 ramp

primary

#309BB6

secondary

#C78A7B

accent

#6646E1

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #309BB6

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →